baber/WOPTO huggingface dataset:
Patent GB-1360244-A (GB)
Title: Methods of making piston rings
IPC: F16J9/12
Filed: 1971-07-20
Abstract: 1360244 Making piston &c rings; coiling FLOQUET-MONOPOLE SA 20 July 1971 [21 July 1970] 34032/71 Heading F2T [Also in Division B3] Piston rings which apply a constant specific pressure to a cylinder wall are made by helically coiling metal wire on a mandrel to form a ring, cutting the wire to length with its ends curving inwardly of the ring so that, released from the mandrel, the ring assumes an open curve and subjecting the ring to a finishing operation. On the mandrel the ring has the form C, Fig. 1, with overlapping inturned ends C 1 , C 2 . Released it assumes the form b and contracted to a it can apply the desired constant pressure. Spring steel wire of round, rectangular, square or trapezoidal cross-section may be coiled on a mandrel 2, Fig. 2, having arcuate end-recesses 6a, 7a to receive the ends of the wire which is severed to length on the mandrel. One or more resilientlyapplied and axially-movable collars apply the wire against the mandrel. In its free state, after release from the mandrel, the ring may be placed in a keeper 16, Fig. 6, and the wire section deformed between plates (14, 9), Fig. 5 (not shown), which also destroy the helical form of the ring. A heat treatment is given with the ring at the free or at the desired operational diameter. The cross-section of the mandrel may vary along its length, permitting rings of different sizes to be formed.
Patent GB-959218-A (GB)
Title: Improvements in or relating to the production of olefinic oxides
Inventor: GRAHAM ARCHIBALD ROBERT
Filed: 1961-09-23
Abstract: Propylene oxide is produced by passing molecular oxygen through a solution of propylene in a water immiscible liquid hydrocarbon or chlorinated hydrocarbon solvent which is substantially inert to oxygen at a temperature between 100 and 200 DEG C. under superatmospheric pressure to form a reaction mixture containing propylene oxide and unreacted propylene, bringing the reaction mixture still substantially under reaction pressure into contact with water to extract the propylene oxide made into the aqueous phase, and recycling the unreacted propylene and the liquid hydrocarbon or chlorinated hydrocarbon solvent to the oxidation stage.  Several suitable solvents are specified, benzene being preferred. Examples are given.
Patent GB-337981-A (GB)
Title: Improvements in or relating to apparatus for cleansing oils
IPC: C10M175/00
Filed: 1929-11-08
Abstract: 337,981. Preston, Stallard, & Co., Ltd., and Malsbury, J. Nov. 8, 1929. Heating by electricity.-In an apparatus of the kind described in Specification 306,771, [Class 91, Oils &c.], for purifying oils in which water or other liquid is circulated through the oil by convection current set up by a heater and circulator, a delay-action switch is provided to control the energization of the heater, whereby at a predetermined and variable interval the heater is cut out. An electrical heater 15, Fig. 1, is connected to a switch 16, which comprises a clockwork mechanism 25, Fig. 2, having a trip mechanism 24 attached to a tube 20. The tube 20 has two electrodes 22, 23 connected to the terminals of the switch 16, and is partly filled with mercury. In operation, the clockwork is wound to the desired amount, and when run down the trip 24 tilts the tube 20, and breaks the contact between the electrodes 22 and 23.
Patent GB-176147-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H1/50
Filed: 1920-12-03
Abstract: 176,147. British Thomson - Houston Co., Ltd., (General Electric Co.). Dec. 3, 1920. Oil switches; actuating; springs; indicators.- In a switch, particularly of the kind wherein contacts open in an insulating fluid, means are provided for assisting the opening and closing movement of the contacts. The switch is shown as a three-pole switch with a common operating- mechanism 4 controlling the separate mechanism of each unit. As shown in Fig. 1, movable contacts 2 are lifted into engagement with the fixed contacts 1 by means of the arm 8. In the form shown in Fig. 2, the lever 6 is of wood or other light material, and carries the arm 8 which is made to reciprocate in a straight line by the paralleling links 9, 10 and the guide-link 11 pivoted at 12. An extension 20 to the link 11 is connected through an adjustable link 19 and a bell-crank lever 18 to a spring 17, which is tensioned in the circuit-opening movement. The bellcrank lever and spring are so arranged that a substantially constant force is exerted by them to counterbalance the weight of the switch mechanism in the switch-closing direction. In this way also rebounding of the contacts in the opening direction is prevented. The force is adjustable as, for instance, by means of a stop 21, and the lost-motion connection ensures tensioning at the proper part of the opening movement. The spring 25 acts on a lever 16 to accelerate the opening movement of all three units. It is tensioned in the closing movement by the levers 13, 15, which may be integral. A lost-motion connection ensures rapid movement in the initial stages. The buffer arm 23 engages with the spring-restrained lever 22 to prevent over-travel of the mechanism in the closing direction. An indicator, consisting of semaphore arms 31, 32 and operating from the lever 13, shows the position of the switch.
Patent GB-897016-A (GB)
Title: Improvements relating to pulleys
IPC: F16H7/18
Filed: 1959-10-09
Abstract: 897,016. Pulleys. RHODES CHAINS Ltd., and HUGHES, B. D. Oct. 7, 1960 [Oct. 9, 1959], No.34240/59. Class 80 (1). A pulley comprises an outer grooved rim 7 into which the outer race 8 of a ball-bearing is fixed either by being pressed into the rim 7 or by the rim 7 being shrink-fitted on the race. The pulley is mounted on an axle 4 whose ends 3 are secured in apertures in side-plates 2<SP>1</SP>.
Patent GB-931194-A (GB)
Title: Improvements in or relating to the forming of rectangular bag bottoms
IPC: B31B29/00
Filed: 1960-10-06
Abstract: 931,194. Making bags. ATELIERS DE CONSTRUCTIONS MECANIQUES C. & A. HOLWEG S.a.r.l. Oct. 6, 1960 [Dec. 21, 1959], No. 34248/60. Class 84(2). A bag 1 is formed, from a sleeve of thermoweldable material, with a rectangular base 2, Fig. 12, which is made by heat-sealing two flaps 4, Fig. 1, pressing the resulting seam flat, and folding the triangular portions 3 inwards. The sleeves are fed between rollers 40, 41, passing between suction cups 22, 22<SP>1</SP> which open their forward end. The lower edge of each sleeve is held by a gripper 23 on a rotary transporter A, and a creaser 39 forms a transverse crease 1A. Tongues 6, 6<SP>1</SP> raise the upper edge of the sleeve, a blade 6<SP>11</SP> forming a fold along the crease 1A. A finger 9 is carried on a carriage which reciprocates rotationally about the axis of the transporter A on a rail 5. The finger 9 is also moved radially of the same axis, Fig. 9 (not shown), in order to press the lower part of the sleeve against the member A, thereby drawing the sleeve between stationary fingers 24 to form the flaps 4. Packer rollers 25 flatten the base 2 on either side of the flaps. Grippers 26 on a second rotary transporter B pivot to draw the flaps 4 between heated jaws, Fig. 11 (not shown), to seal the base seam, the bag being then engaged by grippers 30 on a third rotary member C. A gluing roller 33 with collapsible rules 32 flattens the flaps 4 and forms the crease 2A, the leading portion 3 being pressed by a rotary member 34. Arms 35 pivot to crease the base at 2B, the trailing portion 3 being raised and pressed by arms 36. The finished bag is advanced between a conveyer 37 and the member C to a stacking table 38.
Patent GB-382458-A (GB)
Title: Device for cleansing dentures
IPC: A61C17/00
Filed: 1931-12-12
Abstract: 382,458. Brushes. SIEGRIST, W., Sissach, Basle, Switzerland. Dec. 12, 1931, No. 34513. Convention date, Dec. 12, 1930. [Class 19.] A device for cleaning dentures comprises a hydraulically or other driven brush h detachably connected to a shaft f carried in a tubular holder b and driven by a turbine d at the inner end of the holder b which forms the handle. The shaft f is guided in a bearing g. Water enters at e, i and is discharged past the enlargement on the shaft and so around the brush. Instead of water, compressed air may be used, and instead of a turbine, a rotary driving snail or worm, or any other rotary driver which can be propelled by a liquid or gaseous driving medium.
Patent GB-355134-A (GB)
IPC: C03B13/02
Filed: 1930-11-17
Abstract: 355,134. Glass manufacture. NAAMLOOZE VENNOOTSCHAP MIJ. TOT BEHEER EN EXPLOITATIE VAN OCTROOIEN, 53, Zeekant, The Hague. Nov. 17, 1930, No. 34534. Convention date, Nov. 28, 1929. [Class 56.] Rolling.-Relates to the method of producing sheet glass by pouring the whole contents of a pot of molten glass on to the receiving table of a double-roll machine. According to the invention means are provided for changing the distance between the forming rollers, while rolling is taking place, in order to produce a strip of glass having sections of different thickness. In the construction shown in Fig. 1, the bearings 6 of the upper roller 2 are supported by members 8 which slide in guides formed in the standards 1. The members 8 are secured to screwed spindles 10 which are engaged by worm wheels 12 mounted on the tops of the standards 1, and the worm wheels can be rotated in unison with one another by a shaft 14. A motor 15 is connected to the shaft 14 by an electromagnetic clutch 16, and the circuit of the clutch includes switches 18, 22. In use, the switch 18 is closed at appropriate times by an arm 19 projecting from one of the movable tables 4 which receive the glass strip as it issues from the rollers. The clutch 16 then connects the shaft 14 to the motor 15 which is kept constantly running, and the worm wheels 12 are rotated to alter the distance between the rollers 2, 3. The worm wheels 12 continue to rotate until an arm 21, carried by a disc 20 secured to one of the wheels 12, opens the second switch 22 and breaks the circuit of the clutch 16. The operation is so timed that the wedge-shaped piston of glass p between successive sections of the strip coincides with the gap 41 between successive tables 4, and the sections of the strip are separated by a cutting blade which is moved downwards into the gap. In another construction, shown in Fig. 4, the journals of the roller 2 are eccentrically mounted in bushes 23 which have toothed peripheries that are engaged by worms 24 driven by the shaft 14. Rotation of the bushes causes the distance between the rollers 2, 3 to be altered.
Patent GB-1391142-A (GB)
Title: Dewatering sludge
IPC: C02F1/54
Filed: 1973-07-19
Abstract: 1391142 Dewatering sludge CALGON CORP 19 July 1973 [24 July 1972] 34567/73 Heading C1C An aqueous waste sludge is dewatered by conditioning the sludge with a chemical conditioning agent and subjecting the conditioned sludge to a mechanical dewatering step, the chemical conditioning agent being a watersoluble polymer having a molecular weight of at least 100,000 and containing at least 1À0 mole per cent units of Formula I or II where each of R 1  and R 2  is C 1-18  alkyl or C 7-10  aralkyl or R 1  and R 2  are joined to form, together with the N atom to which they are attached, a heterocyclic group having one or more hetero atoms; R 3  is hydrogen, halogen or C 1-4  alkyl; R 4  is hydrogen, halogen or C 1-5  alkyl; R 5  is C 1-5  alkyl, phenyl or phenyl substituted by one or more C 1-4  alkyl or alkoxy groups; or R 3  or R 4  together with R 5  forms a cyclic group of at least 6 C atoms or a bicyclic group of at least 7 C atoms, which cyclic groups may be substituted by one or more C 1-5  alkyl groups; R 6  is hydrogen or methyl; R z  is any group; X<SP>(-)</SP> is an anion and n is 0, 1 or 2. The polymer may be a homopolymer, a copolymer containing units of both Formulae I and II or a copolymer containing units of Formula I and/or II and units derived from other monomers (watersoluble or insoluble) such as acrylamide, methacrylamide, N (C 1-6  alkyl)-acrylamides and methacrylamides, N-vinyl pyrrolidone, di-(C 1-6  alkyl) dialkyl ammonium chlorides, vinylacetate, acrylonitrile, vinyl chloride, C 1-6  alkyl esters of acrylic acid, methacrylic acid and styrene. The anion X<SP>(-)</SP> is preferably a halide ion. The conditioning agents may be used together with organic conditioning agents such as ferric and ferrous salts, and the pH of the sludge may be adjusted by adding lime. The mechanical dewatering step may be carried out by gravity filtration, vacuum filtration, filter press, elutriation, flotation, thickening and preferably centrifugation. The sludge may be treated or untreated municipal or industrial sludge.
Patent GB-194263-A (GB)
Title: Improvements in luggage carriers for automobiles or the like
IPC: B60R9/02
Filed: 1922-12-19
Abstract: 194,263. Lanton Auto Equipment Co., Inc., (Assignees of Lantier, M. J.). March 3, 1922, [Convention date]. Luggage and like racks and holders.-A luggage-carrier particularly adapted for attachment to the running-board of a motor vehicle comprises a collapsable horizontal section formed of a series of parallel pivoted links 4, 5, 6, Fig. 1, connected to an outer member 9, and an independently collapsable vertical section formed of a series of parallel links 14, 15, 16 pivoted between the member 9 and a second outer member or bar 18. The links 4, 5, 6 are preferably attached to the underside of an angle-iron 2 arranged on the edge of the running-board 1, so that the two sections when collapsed can be housed below the angle-iron 2. The outer member 9 is also in the form of an angle-iron to the vertical edge of which the arms 14, 15, 16 are pivoted to collapse in a forward direction, and to the horizontal edge of which the arms 4, 5, 6 are pivoted to collapse in a rearward direction. The inner extremities of the links 4, 5, 6 are formed with shoulders 8, Fig. 5, to prevent movement of these links beyond the right-angled position, and a pivoted locking- dog 11 holds them in such position. Stops 20 are also disposed on the vertical edge of the angleiron 9 to limit the movements of the links 14, 15, 16.
Patent GB-777332-A (GB)
Title: Preparations for combating fungi and plant diseases
IPC: A01N41/04
Filed: 1953-12-11
Abstract: A dusting or spraying preparation for combating fungi and plant diseases contains as the sole active component a salt-like copper compound of a sulphonic acid derivative of a mono- or poly-nuclear aromatic hydrocarbon which contains, apart from other substituents, at least one halogen atom.  The copper compound may be that of a sulphonic acid or sulphonic acid of a halogenated aromatic hydrocarbon, e.g. dichlorobenzene sulphinic acid, trichlorobenzene sulphonic acid, trichloronaphthalene sulphonic acid; a condensation product of a suphohalide of a halogenated aromatic hydrocarbon e.g. di/ or tri-chlorobenzene sulphochloride, with a primary aliphatic, cyclic, cycloaliphatic or heterocyclic amine e.g. aniline, which may contain further substituents e.g. trichloroaniline; or the compound may be a complex copper salt which has been obtained from the aforesaid compounds by reaction with ammonia or another compound capable of forming complex salts with copper e.g. ethylene diamine. The preparation may also contain another fungicide or insecticide e.g. caustic alkali, sulphur, arsenic or mercury compounds, hexachlorocyclohexane.  Other substances such as melting, gelling and adhering agents, or suspension stabilizers are sulphitic cellulose waste liquor, alkyl aryl sulphonates, mineral oil sulphonates, fatty acid soaps, naphthenic acids, colopheny or tall oil, Tixoton, silicic acid, tylose, aluminium hydroxide, pectin, starch, albumen, talc, kaolin, chalk, bentonite, ground shale, and kieselguhr.
Patent GB-789482-A (GB)
Title: Improvements in or relating to nuclear reactor arrangements
Inventor: LINDLEY PETER ARNOLD
IPC: G21C15/253
Filed: 1955-12-02
Abstract: 789,482. Nuclear reactors. GENERAL ELECTRIC CO., Ltd. Nov. 22, 1956 [Dec. 2, 1955], No. 34642/55. Class 39(4). In a nuclear reactor of the kind in which a cooling gas is circulated under pressure through the core and at least one heat exchanger by a blower, an impeller of the blower and its diffusing casing are arranged within a pressure vessel surrounding the reactor or a heat exchanger. In Fig. 2 the blower is disposed at the bottom of the heat exchanger vessel 2 and comprises an electric driving motor contained within the housing 6, an impeller 7 connected to the motor through a coupling 10, and a diffusing casing 11. The diffusing casing is in the form of an annulus surrounding the centrifugal type impeller 7 which draws coolant gas from the heat exchanger elements 14 and ejects it through the diffusing casing to a lower enclosed region of the heat exchanger and thence through a duct 3 to the reactor core (not shown). The diffusing casing is supported on struts 20, and pressure tight seals are provided at 21 and 22 ; the seal at 22 may be omitted and the motor housing 6 designed as a continuation of the pressure vessel. The motor may be lowered for servicing by disconnecting the coupling 10 and lowering the motor on a rope passing over pulleys 29, 30. When the impeller requires servicing the pressure in the heat exchanger is reduced to atmospheric, the joint 21 unbolted, and the impeller together with the motor housing 6 is lowered by means of the same rope and pulley system. With the arrangement described the ducting connecting the heat exchanger to the reactor can be, and preferably should be arranged in one plane.
Patent GB-1059315-A (GB)
Title: Ferroelectric ceramic compositions
IPC: H01L41/187
Filed: 1963-09-03
Abstract: <PICT:1059315/C1/1> A polarizable ferroelectric composition consists of a material selected from ABCD of the Figure modified by the addition of at least one element of the group thorium and tungsten, thorium being added as a substituent for part of the lead in an amount of from 0.1-8 atom per cent and tungsten being added in an amount equivalent to 0.1-5.0 weight per cent WO3. Additional lead may be added in stoiciometric proportions to balance the added tungsten and thorium.  Up to 25 atom per cent of the lead may be replaced by barium, calcium and/or strontium.  The composition may also include 0.1-5 weight per cent in respect of their oxides of at least one element selected from the group niobium, tantalum, yttrium and the rare earths except cerium.  The composition may be prepared by wet milling a mixture of the precursor oxides (thorium may be present as the oxalate), fired at 850 DEG  C. for about 2 hours, crushed, milled, mixed with a binder and lubricant consisting of equal parts of water and an aqueous dispersion of a solid paraffin, pressed into discs and fired at about 1300 DEG  C. for about 45 minutes in a lead containing atmosphere.
Patent GB-360684-A (GB)
Title: Improvements in or relating to tanks for developing, fixing and washing photographicfilms
IPC: G03D13/04
Filed: 1930-11-19
Abstract: 360,684. Photographic developing apparatus. BOUTS, W. E. M., 25, Crowhurst Road, Brixton, London. Nov. 19, 1930, No. 34852. [Class 98 (ii).] A daylight developing tank for photographic roll film is provided with means for gripping one end of the film, means for drawing in succession the protective paper, the film spool and the film through the tank and means for gripping the other end of the film so that it extends along or near to the bottom of the tank and is free from the paper covering. In the form shown the tank comprises two sections 7, 8, secured together by bolts 9 and wing nuts 11, and having openings covered with lids 15, 17 at the ends. The gripping means comprise hinged plates 41, 35 adapted to be pressed down by spring clips 31, 32. The plate 41 is mounted on a block 42 bearing a plate 40 on which is mounted a spiked block 45 having an apertured plate 46 hinged thereto. The end of the film 50 is secured to the spiked block 45 and the spool gripped between the plates 41, 40. A cord 47 bearing a hook is attached to the protective paper 50a and the paper and spool pulled to the other end of the tank, the other end of the film passing under and being gripped by the plate 35. Light trapped orifices 21, 27 are provided for filling and emptying the tank. A single bolt and wing nut may be provided for clamping the parts together, spring tongues engaging studs, or tongues entering recesses being also provided in this case. In a moclification the tank is constructed of pressed metal, the sections 7, 8 being provided with a telescopic joint.
Patent GB-487339-A (GB)
Title: Device for receiving and retransmitting signals in long distance telephone lines
IPC: H04Q1/442
Filed: 1936-12-18
Abstract: 487,339. Repeaters. SOC. D'APPLICATIONS TELEPHONIQUES. Dec. 18, 1936, No. 34863. Convention date, Jan. 16. [Class 40 (iv)] In a repeater with means for relaying ringing- current, the incoming ringing-current which is of substantially greater amplitude than speech currents is applied directly or through a rectifier to a valve in the speech path, and the change in anode current operates a direct-current relay to connect up a new source. As shown in Fig. 1, the speechamplifying valve 3 is worked on the lower bend of its characteristic and the reception of ringing-current operates relay 5 to connect up the new source. To prevent excess voltages of ringing-current from damaging the valve, a rectifier network is included in the input circuit and is biassed by a resistance 9 in the anode circuit so that the resistance of the network increases with applied voltage. Other arrangements of rectifier networks having a separate biassing battery are described. Fig. 5 shows an arrangement in which the ringing- current is filtered at 14, rectified at 15, and applied to the grid of valve 3 to reduce the bias so that normally-operated relay 5 releases. Fig. 7 shows a complete two-way repeater. Relays 5, 5<1> are differential and are balanced by the normal anode currents in valves 3<1>, 3, respectively, so that relays 19, 19<1> are normally operated. Ringing-current over line L unbalances relay 5<1>, releasing relay 19<1> which operates relay 24 to connect the new source 26 to line L<1>. Relay 27 in series with relays 5, 5<1> is normally unoperated, but if oscillations occur in the repeater due to unbalance, relay 27 operates opening the biassing circuits of relays 5, 5<1> so that both operate. Relays 19, 19<1> both release so that the repeater is completely byepassed over leads 22, and an alarm circuit 28 is closed. The same result occurs if the supply voltage fails. A similar two-way repeater is also described, Fig. 8 (not shown), in which rectified ringing- currents control grid-bias as in Fig. 5.